A silicon material is dopped with an element of a certain group and an n-type semi-conductor is formed. the most likely group of the element is
Question 1 Report
A silicon material is dopped with an element of a certain group and an n-type semi-conductor is formed. the most likely group of the element is
Answer Details
When a silicon material is doped with an element from group III of the periodic table, it creates a p-type semiconductor because group III elements have three valence electrons, and when they replace a silicon atom, they create a "hole" or vacancy in the crystal lattice, which behaves like a positively charged particle.
On the other hand, when a silicon material is doped with an element from group V, it creates an n-type semiconductor because group V elements have five valence electrons, and when they replace a silicon atom, the extra electron creates a negatively charged particle called an "electron."
Therefore, the most likely group of the element that was used to dope the silicon and form an n-type semiconductor is group V. Hence, the correct answer is option (I).
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